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If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?

Consider the image of klmn for the translation (x, y) → (x – 2, y – 1). what is the ordered pair of l′?